diff options
| author | Vipin Sharma <vipinsh@google.com> | 2021-11-09 17:44:25 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-11-11 10:56:24 -0500 |
| commit | 329bd56ce5dc3449788de2dc078861ec6d75e457 (patch) | |
| tree | 6bb424f4dce1e78b147d70b057c5cf6ae8faf68b /arch/x86/kvm/vmx/vmx.h | |
| parent | a5e0c252845432893148d9905e3e379abcde9667 (diff) | |
KVM: VMX: Add a helper function to retrieve the GPR index for INVPCID, INVVPID, and INVEPT
handle_invept(), handle_invvpid(), handle_invpcid() read the same reg2
field in vmcs.VMX_INSTRUCTION_INFO to get the index of the GPR that
holds the invalidation type. Add a helper to retrieve reg2 from VMX
instruction info to consolidate and document the shift+mask magic.
Signed-off-by: Vipin Sharma <vipinsh@google.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211109174426.2350547-2-vipinsh@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.h')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index 86c093da0d63..a4ead6023133 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -550,4 +550,9 @@ static inline bool vmx_guest_state_valid(struct kvm_vcpu *vcpu) void dump_vmcs(struct kvm_vcpu *vcpu); +static inline int vmx_get_instr_info_reg2(u32 vmx_instr_info) +{ + return (vmx_instr_info >> 28) & 0xf; +} + #endif /* __KVM_X86_VMX_H */ |